Loading device



May'Z'Y, 199 P. e. HEINERT LOADING DEVICE Filed Aug. 22, 1966 INVENTOR.Fflfl CE A zF/A/EIZT A 7' Tag/V675 U.S. Cl. 214302 1 Claim ABSTRACT OFTHE DISCLOSURE A refuse loading device attached to a truck body forreceiving refuse at ground level and for elevating and depositing thesame into the truck body. The device employs a lifting boom pivoted atits inner end to the truck at a point well above ground level andnormally positioned in outstanding relation to the body of the truckwith its outer end near ground level. The boom is powered, preferablyhydraulically, and under control, to elevate a refuse receptaclesupported at the outer end thereof into an elevated position with theouter end of the boom disposed close to the upper edge of the truckbody. Mechanism is provided for controllably shifting the refusereceptacle downwardly into a substantially inverted position when theboom is swung to said elevated position.

This invention relates to a loading device and more particularly relatesto a side arm loading device adapted to be attached to a truck forloading refuse into the truck.

In collecting refuse, typically, at least two men are necessary. This isso because the refuse containers generally become rather full in theperiod between collections and two men are necessary to hoist thecontainer over the truck sides for dumping. Several devices for loadinga refuse truck have been developed. The primary purpose of a loadingdevice is the elimination of one of the two men needed, and theattendant labor cost. However, the loading devices presently availableare not sufficiently flexible in that the full range of loading problemsare not considered. For example, a loading device should have provisionto receive refuse directly into the device for deposit into the truck.Also, the loading device should be capable of receiving a refusecontainer of any reasonable size for direct unloading into the truckwithout first unloading the container into the loading device forsubsequent unloading into the truck.

Further, the loading device, in order to include the full range ofusages, must have provision to receive refuse which is dumped into thelifting device for deposit in the truck. Of particular importance is thefeature which allows the operator to simply roll a refuse container intothe loading device without regard for the relative height of the refusecontainer relative to the truck and attached loading device.

With these comments in mind, it is to the elimination of these and otherdisadvantages to which the present invention is directed, along with theinclusion therein of other novel and desirable features.

An object of my invention is to provide a new and improved loadingdevice of simple and inexpensive construction and operation. Anotherobject of my invention is to provide a novel, loading device which willreceive refuse whether by receiving a refuse container therein, or bydirect discharge of the refuse into the loading device for subsequentdeposit in the truck.

Still another object of my invention is the provision of an improved andnovel loading device which completely unloads refuse from the refusereceptacle or refuse container attached to it rather than to thereceptacle into the truck.

A further object of my invention is the provision of an improved loadingdevice which loads refuse into a truck nited States Patent and which isextremely simple in its assembly and will therefore permit quick andeasy attachment to a truck and operation by a person with minimum skillor manual dexterity.

A still further object of my invention is the provision of a loadingdevice which will receive refuse or a refuse container thereinregardless of the elevation of the refuse or refuse container relativeto the elevation of the truck into which the refuse will be unloaded.

These and other objects and advantages of my invention will more fullyappear from the following description made in connection with theaccompanying drawings, wherein like reference characters refer to thesame or similar parts of the several views, and in which:

FIG. 1 is a diagrammatic sketch showing a typical usage of my loadingdevice;

FIG. 2 is a rear view of my loading device attached to a truck andincluding in dotted line views showing on loading utilizing my device;

FIG. 3 is a sectional view taken along section line 3-3 of FIG. 2;

FIG. 4 is aplan view of the refuse receiving receptacle of my inventionwith a dotted line view showing a portion of the receptacle opened topermit receiving of refuse containers in the refuse receptacle taken atline 44 of FIG. 2; and

FIG. 5 is a perspective view showing the attachment of the side armmember of my device to a truck.

One form of the present invention is shown in the drawings and isdescribed herein.

Referring to FIG. 1, my device, indicated in general by numeral 10, isshown attached to refuse truck 11. An operator is shown emptying arefuse container 12 into the refuse receiving receptacle 13 of myinvention. Receptacle 13 is shown attached to lifting arm member 14. Theattachment means between the arm 14 and receptacle 13 1s not shown. Thearm 14 is attached to truck 11 by the connection shown, in general, at15.

Referring to FIG. 2, my device is shown in the solid line, in positionto receive a refuse container therein. The refuse container is indicatedby the numeral 12 and 1s secured in receptacle 13 by chain 16. It shouldbe noted that refuse may be deposited directly into receptacle 13 fordirect discharge into truck 11 or the refuse may be deposited first intoa container 12, which contamer may then'be secured in receptacle 13 forsubsequent discharge. Further, the size of receptacle 13 should besufliciently large to accommodate widely varying sizes of containerssuch as the container 12 shown secured in receptacle 13. Receptacle 13is generally annular and com pnses a pair of arcuate segments 17 and17a. Arcuate sect on or segment 17a is hingedly attached to arcuatesection or segment 17 about a substantially vertical hinged line topermit rotational movement of section 17a to provide an opening intowhich container 12 may be positioned.

Lifting arm member 14 is attached to receptacle arcuate section 17utilizing bracket 18 Which is securely afiixed to segment 17 ofreceptacle 13. Lifting arm mem ber 14 is adapted to rotate about pivot19 which is substantially horizontal and disposed in line with thedirection of travel of truck 11. It should be noted that my receptacle13 is constructed of a rigid material such as galvanized steel in thatit must withstand a high degree of abuse during the loading andunloading operations. Arm 14 is typically a rigid channel iron,commercially available, and bracket 18 may be constructed of a pair ofangles affixed to section 17 of receptacle 13 as by welding.

A commercially available hydraulic cylinder 20 is shown pivotallyattached to lifting arm member 14 at pivot 21. Bracket 22 receives pivot21 and is attached to arm member 14 by bolt assemblies 23. The ram 24 ofcylinder is pivotally attached to bracket 18 at pivot 25. A pair ofhydraulic lines 26 connect cylinder 20 to a hydraulic motor which is notshown here. It should be noted that bracket 23 is adjustable in thatbolt assemblies 23 may be received into any pair of apertures 27 in armmember 14. This adjustment provides for changing the angle at whichrefuse receiving receptacle 13 rests and, correspondingly, the angle atwhich refuse receiving receptacle 13 discharges into truck 11. Pivot 19and may be made in any suitable manner, as by inserting a one-half inch"bolt through a five-eighths inch piece of steel pipe and supplyingbushings on each side to hold the pipe in place. The details of thisconnection are not shown in that any of several hinge or pivot meanswell known in the art may be utilized.

Lifting arm member 14, shown in FIG. 2, to which receptacle 13 isattached, is, in turn, attached to truck 11 at connection 15. Liftingarm member 14 is afiixed to lever arm member 28 which is affixed tolifting arm member 14 as by welding and at substantially right anglesthereto. A supporting gusset or bracket 29 is shown affixed to liftingarm 14 and lever arm 28 maintaining the relation between said arms inright angular relation. Truck mounting bracket 30 is attached to truck11 by bolt assemblies 31. Bracket 30 extends outwardly from truck 11providing a pivot point 32 adapted to receive lever arm member 28 forrotation about pivot 32 which is substantially horizontal and in linewith the direction of travel of truck 11.

It will be obvious that the lifting arm 14 with the angled lever arm 28constitutes an outstanding boom, which as will be later described, iscontrollably elevated, preferably by hydraulic mechanism, from a closeto ground position at its outer end, to an upstanding, extreme elevatedposition.

Hydraulic cylinder 33 is attached, at one end, to truck 11 and the ram,at the other end of cylinder 33 and denoted by numeral 34, is pivotallyattached to lever arm 28 at pivot 35, which is substantially at theintersection of arm member 14 and lever arm member 28. The cylinder 33is attached to an hydraulic motor, which is not shown, utilizinghydraulic lines 36. Means controlling the flow of hydraulic fluid fromthe hydraulic motor to cylinders 33 and 20 is not shown since thecontrol means is well known in the art, and is simply interposed in thehydraulic lines to each of the respective cylinders. Connection 15 istypically constructed of rigid steel stock which is commerciallyavailable and may take the typical shape of angle stock out and weldedto fit and form a rigid joinder of lever arm member 28 to lifting armmember 14.

A bracket 30 may be welded onto the joint formed by members 14 and 28respectively, with an aperture therein adapted to receive cylinder 33and form pivot point 35. Bracket 30 is also constructed of rigid steelstock, such as angle stock, with suitable apertures to receive pivot 32.Brake member 37 is shown attached to truck 11 and projecting outwardlytherefrom. Lifting arm member 14, in the raised position indicated bythe dotted lines, contact brake 37, abruptly stopping the movement ofarm 14 in transmitting the abrupt motion to receptacle 13 disposed atthe end of arm 14. This jerking action tends to shake loose any refusein the receptacle or in a container attached in the receptacle. Thebrake is typically formed of an angle iron which is attached to truck 11as by welding.

A detail of the connection of arm 14 to bracket 30 is shown in FIG. 5.Arm member 14 includes a plurality of apertures 27 adapted to receive anhydraulic cylinder 20 shown in FIG. 2. Lever arm member 28 is shownattached to arm member 14 and secured in right angular relation theretoby supporting bracket or gusset 29. Shaft 38 is inserted throughapertures 39 in bracket 30 and apertures 39a in lever arm member 28 toform a pivot point, indicated at numeral 32 in FIG. 2. Bracket 30includes apertures 40 adapted to receive bolt assemblies 31 to securebracket 30 to truck 11. Bracket 30 which extend outwardly from arm 14and is typically welded thereto, is adapted to receive ram 34 ofcylinder 33 for rotation about a substantially horizontal axis in linewith the direction of travel of the truck 11. Means securing shaft 38 inapertures 39 and 39a respectively is not shown, although a conventionalnut arrangement may be threaded at each end of shaft 38 to maintainposition in apertures 39 and 39a. Arm member 14 is also shown withapertures 41 adapted to form the pivot point deoted as 19 in FIG. 2.

FIG. 3 shows the annular receptacle 13 of my loading device. Receptacle13 is shown attached to lifting arm member 14 as pivot 19 formed by theattachment of the pair of brackets 18 which are welded to arcuatesection or segment 17 of the receptacle 13. A refuse container 12 isshown secured in segment 17 by chain 16 which joins each side of segment17 thereby securing container 12 therein. Arcuate segment 17b ishingedly attached to segment 17 along the hinged line 42 which issubstantially upright when the receptacle 13 is positioned at the levelon which the truck 11 rides. Segment 17b is secured to segment 17 as bya chain interconnecting each of the segments or sections, the chaindenoted, in general, by numeral 43.

A platform 44 is shown at the bottom of section 17b and separate fromplatform 44a which is disposed at the bottom of section 17 and supportscontainer 12. Referring to FIG. 4, the receptacle 13 is shown at thepoint of attachment to ram 24 at pivot 25. Bracket 18 is shown welded tosection 17 of receptacle 13. A container 12 is shown secured in section17 by chain 16 which is attached to each side of 17. A latch 45 drawschain 16 tightly about container 12. Arcuate section 17a is shown indotted lines, pivoted outwardly from section 17 about hinge 42, therebyforming an opening, indicated at numeral 46, into which container 12 maybe inserted to rest on platform 44a.

The operation of my loading device is described by referring to FIG. 2.As shown in the solid lines, a refuse container 12 is secured inreceptacle 13 by tightly securing container 12 in arcuate 17 ofreceptacle 13, utilizing chain 16. The operator may then actuate thecontrol mechanism, which is not shown, providing flow of hydraulic fluidto cylinder 33, thereby extending ram 34. As ram 34 extends, it actsupon lever arm member 28, pivoting lever arm member 28 about pivot 32thereby raising lifting arm member 14 while maintaining the container 12and receptacle 13 in a substantially upright position. It should benoted, of course, that container 12 may be eliminated from considerationin that the refuse may be readily discharged into receptacle 13.

As arm 14 is raised in response to the action of cylinder 33, it assumesa position, as shown in the dotted lines at 14a. This is an intermediateposition, and in this position the receptacle 13 has not changed itsposition relative to member 14a. In the raised position, with side armmember indicated at 14b, receptacle 13 is in the position correspondingto its position in the solid lines of FIG. 2. To completely dischargethe refuse from container 12, the operator may manipulate the controlsto the hydraulic motor causing fluid to flow through cylinder 20 therebyextending ram 24 and pivoting receptacle 13 about pivot point 19,thereby forcing the receptacle 13 into the position indicated at 13a,thereby discharging the entire load within the container .12. In theraised position, arm member 14b contacts brake 37 allowing the operatorto manipulate cylinder 33 causing arm 14b to be jolted against brake 37,thereby further emptying receptacle 13 in that the jolt caused by brake37 on arm member 14b is transmitted to the receptacle 13, therebyshaking the receptacle to dislodge any remaining refuse.

It should be noted that cylinder 20 and ram 24 may be replaced "by arigid member thereby eliminating the second cylinder and control means.Of course, the position of the receptacle 13 relative to arm member 14is constant and, therefore, no means is provided to further increase theangle between receptacle 13 and arm member 14 when arm member 14 israised to the position indicated at 1412 in FIG. 2. However, theoperator may manipulate cylinder 33 causing arm member 14b to contactbrake 37 and thereby shake the receptacle 13 when it is in the raisedposition.

It will, of course, be understood that various changes may be made inthe form, details, arrangement and proportions of the various partswithout departing from the scope of my invention.

What is claimed is:

1. A loading device attached to a truck for receiving refuse at groundlevel and for elevating and depositing refuse in the truck body havingin combination,

a lifting boom pivoted at its inner end to said truck at a point wellabove ground level and normally positioned in outstanding relation tothe body of said truck with its outer end near ground level,

powered boom-actuating mechanism for controllably swinging said boom toan elevated position with its outer end disposed close to the upper edgeof said truck body,

a refuse receptacle shiftably supported from the outer portion of saidboom and disposed in upright refusereceiving position when said boom islowered,

mechanism for controllably shifting said receptacle downwardly intosubstantially inverted position over said truck body when said boom isswung to said elevated position,

and said refuse receiving receptacle being generally annular andcomprising a pair of hinged arcuate sections adapted to pivot about anupright aXis to provide an opening adapted to receive refuse containingcontainers, said arcuate sections adapted to be secured forming saidannular receptacle and wherein said receptacle includes means retainingsaid refuse containing container in said receptacle.

References Cited UNITED STATES PATENTS ROBERT G. SHERIDAN, PrimaryExaminer.

U.S. c1. X.R. 214 77, 308

